TESS Alternatives: The Best Trademark Search Tools in 2026

Every month, 6,600 people search Google for "tess trademark search." The tool they're looking for hasn't existed since November 2023. TESS, the USPTO's Trademark Electronic Search System, was retired and replaced with something new.

If you're one of those 6,600 people, here's the short version: the official replacement lives at tmsearch.uspto.gov, and it only covers US trademarks. Depending on what you actually need, there are better options. This guide covers all of them.

What Happened to TESS?

TESS was the USPTO's free trademark search tool for over 20 years. If you've ever searched for a US trademark online, you probably used it. It was clunky, desktop-only, and timed out constantly, but it was the only free way to search the full USPTO database directly.

In November 2023, the USPTO retired TESS and launched a new search tool at tmsearch.uspto.gov. The old system ran on aging infrastructure that couldn't support mobile devices, modern search features, or the volume of users hitting it daily. The USPTO receives over 600,000 trademark applications per year. The search tool needed to keep up.

The problem is that the transition was quiet. No massive announcement campaign. No redirect from the old URLs.

If you Google "tess trademark search" today, you'll find a mix of outdated guides referencing a system that no longer exists and newer articles pointing you to the replacement. The 6,600 monthly searches for that exact term tell you the confusion hasn't cleared up.

If you need a quick US trademark search, the new USPTO tool at tmsearch.uspto.gov is where you should start. But if you need international coverage, phonetic matching, or the ability to build search into your own product, you'll need something else. Here's what changed when TESS was retired and what your options are now.

USPTO Trademark Search (The Official TESS Replacement)

The new USPTO search tool at tmsearch.uspto.gov is the direct replacement for TESS. It covers every trademark filed with the USPTO, both active registrations and dead marks. It's free, it's authoritative, and it's a significant upgrade from what TESS offered.

What's improved. The interface is cleaner and works on mobile. You can search by word mark, registration number, serial number, or owner name. Boolean operators (AND, OR, NOT) work for combining search terms, and you can filter by filing date, registration date, status, and design code. Results load faster than TESS ever managed.

A practical example. Say you want to check if "Northwave" is registered for software. Go to tmsearch.uspto.gov, type "Northwave" in the search field, and filter by Nice Class 9 (the international classification category for software, electronics, and downloadable goods). You'll see every matching registration and pending application. Each result links to the full TSDR record with filing dates, goods descriptions, and current status.

Where it falls short. The USPTO search only covers US marks. If you're launching in Europe, Canada, or anywhere else, you won't find those registrations here. There's no phonetic or fuzzy matching, which means a search for "Northwave" won't surface "Northwaive" or "Nortwav."

There's no API, so you can't automate searches or build the tool into your own workflow. And there's no bulk export if you need to pull data for analysis.

Best for: Quick, one-off US trademark searches. If you just need to check whether a name is taken in the United States, this is the right starting point. For anything beyond that, you'll need additional tools.

WIPO Global Brand Database

If you need to search beyond the US, the WIPO Global Brand Database is the largest free trademark search database available. Run by the World Intellectual Property Organization, it covers trademarks from 70+ national and regional offices in a single search.

What it does well. You can search by text, by image (useful for logo trademarks), or by Nice class. It includes marks filed through the Madrid Protocol, which is the international filing system that lets applicants file one application covering multiple countries through WIPO rather than filing separately in each one. For a free trademark search tool, the coverage is hard to beat.

Data freshness varies, and this matters. WIPO aggregates data from dozens of offices with different update schedules. USPTO data in WIPO typically lags 1-2 days behind what you'd find on tmsearch.uspto.gov. Major offices like the EUIPO and Japan's JPO are usually current within a few days. But smaller offices can lag weeks or even months.

The Philippine IPO, for instance, may be several weeks behind. If you're relying on WIPO for a specific jurisdiction, check the "Last Updated" date for that office's data on the WIPO site. A clean result in a jurisdiction with stale data doesn't mean much.

The limitations beyond freshness. Search quality varies by office since WIPO is normalizing data from systems with different standards. There's no API access, so everything is manual. Export options are limited. And phonetic matching is basic at best.

Best for: Preliminary international searches when you want a rough picture of whether a mark is in use globally. If you're considering filing in multiple countries, WIPO gives you a starting point. But treat the results as directional, not definitive. Data gaps mean a clean WIPO search doesn't guarantee the mark is actually available.

Clearance searching for trademark filing is a different process entirely from a preliminary search. Consult a trademark attorney for legal guidance specific to your situation before making filing decisions based on search results from any tool.

TMview

TMview is the EUIPO's (European Union Intellectual Property Office) free trademark search tool. Like WIPO, it covers 70+ participating offices, but its strength is European coverage.

What sets it apart. TMview pulls data directly from the EUIPO, meaning European Union trademark results are as close to real-time as you'll get in a free tool. It also includes marks from every national office across Europe: Germany's DPMA, France's INPI, Spain's OEPM, and all other EU member states.

But the coverage doesn't stop at Europe. TMview includes partner offices from outside the EU, including IP offices from the US (USPTO), South Korea (KIPO), Japan (JPO), Mexico (IMPI), and several African regional organizations. In total, TMview covers more offices than most people realize.

A practical example. Say you're checking whether "Northwave" is available for software across Europe. In TMview, enter "Northwave" as the trademark name, select Nice Class 9 from the classification filter, and choose the territories you care about. You can select all 27 EU member states individually, or just search the EUIPO database for EU-wide registrations.

The results show you the mark text, owner, filing date, status, and the specific Nice classes covered. Each result links back to the originating office's full record.

The trade-offs. The interface is more complex than the other free tools. Search options are powerful but not intuitive, especially if you're unfamiliar with the European classification system. Coverage outside Europe exists but is secondary, and the non-EU office data may not update as frequently as the European data. And like every other free tool on this list, there's no API.

Best for: EU trademark searches, and as a second opinion alongside WIPO Global Brand Database. Running the same search in both tools catches registrations that one might miss due to data lag or indexing differences.

Trademark Search APIs

The free tools above share a common limitation: they're all manual. You type a query, scan results, repeat. That works for one-off searches, but it breaks down in three scenarios.

First, scale. If you're an e-commerce platform onboarding thousands of sellers, you can't manually search each brand name. Second, integration. If you're building a legaltech product or a brand naming tool, you need search results inside your application, not in a browser tab. Third, search quality. Free tools typically offer exact text matching. They won't catch phonetic variations ("Northwave" vs. "Northwaive"), fuzzy matches with typos, or prefix patterns.

This is where trademark search APIs fill the gap. An API lets you automate trademark searches programmatically, run them in bulk, and build results directly into your product.

There are a few ways to get API access to trademark data. Some enterprise platforms (covered in the next section) offer APIs as part of their packages, though these tend to be priced for enterprise contracts and may not be publicly documented. Then there are API-first platforms built specifically for developers.

Signa is one example of an API-first trademark search platform. It indexes 147M+ trademark records across 200+ offices and supports four search strategies: exact, phonetic, fuzzy, and prefix. Here's what a phonetic search looks like:

curl -G "https://api.signa.so/v1/trademarks" \
  -H "Authorization: Bearer $SIGNA_API_KEY" \
  --data-urlencode "q=Northwave" \
  --data-urlencode "strategies=phonetic" \
  --data-urlencode "offices=US,EM" \
  --data-urlencode "nice_classes=9"

const signa = new Signa({ api_key: process.env.SIGNA_API_KEY });

const results = await signa.trademarks.search({
  query: 'Northwave',
  strategies: ['phonetic'],
  filters: {
    offices: ['US', 'EM'],
    nice_classes: [9],
  },
});

// results.data contains matches with mark_text and score

That single call searches US and EU trademarks for anything that sounds like "Northwave" in Class 9. The response includes a relevance score for each match, so you can prioritize the closest conflicts.

If you're evaluating API options, four things matter. Coverage: how many offices are indexed, and how current is the data? Search strategies: does the API support phonetic and fuzzy matching, or just exact text? Pricing model: is it usage-based per call, or do you need an annual contract? And documentation quality: can you make your first API call in under 10 minutes, or do you need a sales call first? These factors vary significantly across providers, so request trial access and test with your actual use cases before committing.

When API vs. manual makes sense. If you're searching trademarks a few times a quarter for your own brand, the free tools are fine. If you're running searches daily, building them into a product, or need phonetic and fuzzy matching that free tools don't offer, an API is the right choice.

Enterprise Trademark Search Platforms

At the other end of the spectrum are full-service enterprise platforms. The three biggest names are Corsearch, CompuMark (owned by Clarivate), and TrademarkNow (now part of Corsearch). They serve different needs, and grouping them together understates the differences.

CompuMark has been in the trademark data business the longest. Its core strength is historical depth. CompuMark's database includes decades of common-law data (unregistered trademarks found on the web, domain databases, business registrations, and social media) alongside registered marks. If you need to know whether a name has been used in commerce going back 15 or 20 years, even without a formal registration, CompuMark's dataset is hard to match.

Corsearch (which acquired TrademarkNow in 2020) has built out a full-lifecycle platform. Beyond search, Corsearch offers monitoring with enforcement workflows, online brand protection (counterfeit detection, marketplace takedowns), and case management tools that connect directly to outside counsel. It's designed for teams that need to move from "we found a conflict" to "we sent a cease-and-desist" inside one platform.

TrademarkNow, before its acquisition and as its technology continues within Corsearch, pioneered AI-powered trademark searching. Its algorithms analyze phonetic similarity, visual similarity, and conceptual similarity in ways that go beyond traditional keyword matching. If you've ever seen a trademark search tool that told you two marks are "conceptually similar" even though they share no letters, that approach traces back to TrademarkNow's technology.

The cost. Enterprise platforms typically start at $10,000 per year and can run well above $100,000 for large portfolios. They're designed for law firms managing hundreds of clients and enterprises with global trademark portfolios. If you're a startup checking one name or a developer building a product, these tools are priced for a different audience.

When they make sense. If your organization files dozens of trademarks per year, needs analyst-written clearance opinions, or requires integrated legal workflow tools, enterprise platforms deliver genuine value. The best trademark tools depend entirely on what you're building and what your budget supports.

How to Choose the Right Trademark Search Tool

There's no single tool that covers everything. Most people end up using 2 or 3 depending on the situation. Here's a simple framework.

Quick US check. You're a founder validating a name idea. Check if the name is trademarked using the USPTO search at tmsearch.uspto.gov. It's free, it covers all US marks, and it takes 30 seconds.

International preliminary search. You're expanding to Europe or filing in multiple countries. Run the same search in both WIPO Global Brand Database and TMview. Cross-referencing two free tools catches more than either one alone.

Clearance for filing. You're ready to file and need confidence the name won't conflict. This is where a proper clearance search matters. You need phonetic matching, multi-jurisdiction coverage, and ideally professional review. API tools with phonetic search or a professional clearance service are the right fit here.

Integrated or automated search. You're building trademark search into a product, running checks at scale, or automating clearance workflows. API-first tools are the only option that works.

Ongoing monitoring. You've registered your trademark and now you need to watch for new filings that could conflict with your mark. This is a different problem from searching. Monitoring means continuously scanning new applications across the jurisdictions where you're registered, and getting alerted when something similar appears.

The free tools don't do this. You either need a dedicated trademark monitoring service or an API that lets you build your own watch and compare new filings against your registered marks on a schedule. Monitoring is how you protect the investment you made in registering the trademark in the first place.

Here's how the tools compare:

The right answer for most people: start with the free tools for quick checks, and add an API or professional service when you need phonetic matching, automation, or multi-jurisdiction coverage that the free tools can't provide.

Try searching trademarks across 200+ offices with Signa's API. A free tier is available at signa.so.